nav tabs on admin dashboard

node_modules/enhanced-resolve/lib/AppendPlugin.js

@@ -2,21 +2,23 @@
 	MIT License http://www.opensource.org/licenses/mit-license.php
 	Author Tobias Koppers @sokra
 */
-function AppendPlugin(source, appending, target) {
-	this.source = source;
-	this.appending = appending;
-	this.target = target;
-}
-module.exports = AppendPlugin;
+"use strict";
 
-AppendPlugin.prototype.apply = function(resolver) {
-	var target = this.target;
-	var appending = this.appending;
-	resolver.plugin(this.source, function(request, callback) {
-		var obj = Object.assign({}, request, {
-			path: request.path + appending,
-			relativePath: request.relativePath && (request.relativePath + appending)
+module.exports = class AppendPlugin {
+	constructor(source, appending, target) {
+		this.source = source;
+		this.appending = appending;
+		this.target = target;
+	}
+
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver.getHook(this.source).tapAsync("AppendPlugin", (request, resolveContext, callback) => {
+			const obj = Object.assign({}, request, {
+				path: request.path + this.appending,
+				relativePath: request.relativePath && (request.relativePath + this.appending)
+			});
+			resolver.doResolve(target, obj, this.appending, resolveContext, callback);
 		});
-		resolver.doResolve(target, obj, appending, callback);
-	});
+	}
 };